27495723128 has 8 divisors (see below), whose sum is σ = 51554480880. Its totient is φ = 13747861560.

The previous prime is 27495723121. The next prime is 27495723131. The reversal of 27495723128 is 82132759472.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27495723121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1718482688 + ... + 1718482703.

It is an arithmetic number, because the mean of its divisors is an integer number (6444310110).

Almost surely, 2^27495723128 is an apocalyptic number.

It is an amenable number.

27495723128 is a deficient number, since it is larger than the sum of its proper divisors (24058757752).

27495723128 is a wasteful number, since it uses less digits than its factorization.

27495723128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436965397 (or 3436965393 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The spelling of 27495723128 in words is "twenty-seven billion, four hundred ninety-five million, seven hundred twenty-three thousand, one hundred twenty-eight".